The exception message indicate the B2BdbBNBB27 failed to respond back to the Fuse ESB Server which is waiting for the http response.
Its of course a bit weird. I assume the B2BdbBNBB27 server gets the request. Can you check its logs to see if that happens, and if the server is sending back a reply?
The strange thing is that the service doesn't seem to be called on the B2BdbBNBB27.
I'm pretty sure this service is working, since I use it in other routes as well...
Apparently the problem seems to be related to my client initiating the http request. When I use another client, the issue is solved...